May I suggest that you read some about magnets? Check here first
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Have fun, Tom
magnets
Dec 14, 2004
2 Replies
The OP question is deficient. But...
If "Joyjoy" is interested in obtaining the frequency of a spinning magnet, or if he wants to detect the presence or absence of a moving magnet, he could use a reed switch or a hall effect sensor. Both of them would detect the presence or absence of a magnet.
Chris
Is there a device i can use to measure the frequency of a magnet?
thank you
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